I was trying to add a scale so we could rate forum posts as useful, as we can here; but our Moodle would only allow a scale to be added if it had more than one entry.
How is the useful rating scale set up on Moodle.org?
Interesting .. I just tried this, made a scale, added "useful" with a comma after it- tried it out in a forum - it accepted it fine but offered me "useful" and then "2" which I most certainly didn't type in as part of the scale. So awaiting response from higher authorities 